86996307666 has 16 divisors (see below), whose sum is σ = 176376076704. Its totient is φ = 28601525664.

The previous prime is 86996307659. The next prime is 86996307679. The reversal of 86996307666 is 66670369968.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 86996307597 and 86996307606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99310416 + ... + 99311291.

It is an arithmetic number, because the mean of its divisors is an integer number (11023504794).

Almost surely, 2^86996307666 is an apocalyptic number.

86996307666 is an abundant number, since it is smaller than the sum of its proper divisors (89379769038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86996307666 is a wasteful number, since it uses less digits than its factorization.

86996307666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198621785.

The product of its (nonzero) digits is 105815808, while the sum is 66.

The spelling of 86996307666 in words is "eighty-six billion, nine hundred ninety-six million, three hundred seven thousand, six hundred sixty-six".